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Fig. 17. Simplified block diagram for the auto-reclose functions in the control module SPTO 6D3.
CLOSE ENABLE BY
INTERLOCKING
OPEN ENABLE BY
INTERLOCKING
AR3
AR2
AR1
ARINH
S73
S72
S71
&
OPEN
CLOSE
CB STATUS;
OPEN
&
R
S
S23
S22
S21
1
S24
t
S26
t
CB STATUS;
CLOSED
&
1
S25
t
S77
t
V6
t
V5
t
1
S78
SG1/2
SHOT 1
SHOT 3
SHOT 4
SHOT 5
&
OPEN
CLOSE
CB STATUS;
OPEN
&
R
S
S33
S32
S31
1
S34
t
S36
t
CB STATUS;
CLOSED
&
1
S35
t
S77
t
V6
t
V5
t
1
S78
SG1/2
SHOT 2
OPEN
CB STATUS;
CLOSED
&
1
S75
t
S76
t
V5
t
FINAL TRIP BY AR
S74
t
&
&
CB
OPEN
CB
CLOSE
S79
S79